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Application filed by Kapsch Telephon TelegraphfiledCriticalKapsch Telephon Telegraph
Priority to AT403774ApriorityCriticalpatent/AT327295B/de
Publication of ATA403774ApublicationCriticalpatent/ATA403774A/de
Application grantedgrantedCritical
Publication of AT327295BpublicationCriticalpatent/AT327295B/de